Cut chicken breasts into 1-inch cubes and place them inside a large Ziplock bag. Set aside.
4 boneless, skinless chicken breasts
Mix the soy sauce, water, sugar, and rice wine vinegar together.
3 tablespoons low-sodium soy sauce, 1 tablespoon water, 1 tablespoon granulated sugar, 1 tablespoon rice wine vinegar
Add the marinade to the Ziplock bag and coat the chicken completely. Refrigerate for 30 minutes.
Meanwhile, mix 4 teaspoons cornstarch with 2 tablespoons water and set aside.
4 teaspoons cornstarch
In a small saucepan stir the soy sauce, water, rice wine vinegar, sugar, garlic powder, and ground ginger together.
¾ cup low-sodium soy sauce, ¾ cup water, ½ cup granulated sugar, 1 tablespoon rice wine vinegar, ½ teaspoon ground ginger, ¼ teaspoon garlic powder
Use a whisk to mix together the ingredients and then bring to a boil. Reduce heat to low.
Add cornstarch mixture into the saucepan and stir constantly until fully combined and thickened.
Heat chicken in a large skillet over medium high heat.
Pour the teriyaki sauce over all the chicken (reserving some sauce for serving) and cook until chicken is fully cooked, about 3-4 minutes on each side; depending on the thickness of the chicken.
Sprinkle the chicken with sesame seeds.
1 tablespoon sesame seeds
Serve over rice or with your favorite veggies, with extra teriyaki sauce on the side.